Question

please help me......

Answer 1

No the handle and bristles of a tooth brush should not be made of the same material. The handle requires strength and stiffness, thus should be made of plastic and bristles should be made of nylon because they are supposed to be soft and elastic. If both are made of plastic the brush may damage our gums, or nor can both be made of nylon. Thus they should be made of their respective materials only.
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